I have some Winchester 223 and it is crimped, also some remington peters that is crimped and lake city that is crimped. I tried the Lyman pocket reamer and the lyman deburrer and with both I still have quite a few cases that will not take a new primer without crushing the primer in.
The Lyman primer pocket reamer in a drill and still have problems putting in a new primer, what the heck am I doing wrong ?

what do you guys use to remove the crimp from primer pockets on 223 or 5.56 military brass ?

I use the Dillon Super Swage 600. Very quick. On select match cases for long range precision loads I use the primer pocket profile reamer on my Wilson trimmer. Cutting has two advantages over swaging: One is that there is no anvil squashing any flash hole (also called the vent) burrs flat and over top of the vent itself (I usually deburr the inside of the vent on my drill press before swaging for that reason). The other is that the swager pushes brass aside, which results in a slightly raised area around the lip of the primer pocket. It will flatten back out at the next firing, but for precision loads I want it gone already.

Cutting also has one disadvantage compared to swaging tools: It is much slower and more effort to do. That's why only a small number of select cases get that treatment from me.

RCBS is discontinuing the original because the 2nd version has now been released. I am using the new one and it works very well. I too found that the Lyman pocket reamer did not work on all cases. The RCBS unit does a very consistant job of it.

I wonder what the difference is in the new RCBS Swager Combo2 is as compared to the original?

The rods are supposed to be stonger and the swager buttons slightly redesigned for better consistancy. The rods bending was the biggest complaint with the original, so that's a plus. No idea what they really changed on the swager buttons.

The Dillon Super Swage 600 costs so much and works so well, it should be shared between handloaders.

But the nearest other handloading bench is 900 miles from here, so I can't borrow it.

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I bought the new RCBS Bench-mounted swager. I was very curious whether they could get away with that short handle, and still be near effortless as the Dillon version is.

It works as advertised. One thing I really like is the absence of another handle hanging over the bench.

I did a picture review of the tool on AR15.com and they put it in their tacked Gateway thread. If you're curious about this green usurper...check it out HERE. First Picture is a Video......Don't mind the piece of brass that didn't work....too dumb to notice there was still a primer in it.

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